Most dolphin births along coastal Texas waters occur in March. Peak calving for dolphins in Florida's Indian River Lagoon occurs in April and August. Bottlenose dolphins in the Pacific Ocean along the coast of Southern California have shown a calving peak in the fall.
On May 9, 1917, the company became the Boeing Airplane Company. In late 1917, the U.S. entered World War I and Boeing knew that the U.S. Navy needed seaplanes for training. So Boeing shipped two new Model Cs to Pensacola, Florida where the planes were flown for the Navy.
That same year, Boeing created an airline named Boeing Air Transport, which merged a year later with Pacific Air Transport and the Boeing Airplane Company. The first airmail flight for the airline was on July 1, 1927.ertol Aircraft Corporation was acquired by Boeing in 1960, and was reorganized as Boeing's Vertol division. The twin-rotor CH-47 Chinook, produced by Vertol, took its first flight in 1961. This heavy-lift helicopter remains a work-horse vehicle up to the present day.